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Why do my A/C loads discharge my battery bank so quickly?

George Lone

Modified on: Wed, 29 Jan, 2020 at 10:53 AM

Please keep in mind that if you will be powering A/C loads it is important to take the rated watts of each load and divide it by the operational voltage of your battery bank. For example, a 200-watt A/C load divided by 12-volts equals an hourly amperage consumption of 16-17 amps per hour. You can now take the amperage consumption (16-17 amps) and multiply it by your load's approximate runtime and this will equal the necessary amount of amp hours. 17 amps multiplied by a runtime of 2 hours equals 34 amp-hours.